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(Model.)

N. S. BEARDSLEE.

APPARATUS POR THE MANUPAGTURE 0F SALT.

No. 320,207. Patented June 16, 1885.

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'I @site *raras Arent ,torrent NATI-IAN S. BEARDSLEE, WARSAV, NEV YORK.

APPARATUS FOR THE MANUFACTURE OF SALT.

SPECIFICATION forming part of Letters Patent No. 320,207, dated June 16,1885. l l Application tiled January 2S, 1885. (Model.) l i To all whomit may concern:

Be it known that I, NATHAN S. BnllRDsLEE, a citizen of the UnitedStates, residing at XVarsaw, in the county of XVyoming and State of NewYork, have invented a new and useful Apparatus for the Manufacture ofSalt, of which the following is a specification.

My invention relates to improvements in apparatus for the manufacture ofsalt, in which artificial heat is used to aid the evaporation andrelease of the salt held in solution; andthe objects of my improvementsare, first, to provide a salt-grainer with heating-tubes, having are-box in one end of the tube, the said tube being submerged in thebrine; second, to afford facilities for automatically depositing thesalt at the side of the grainer instead of at the end of the same; and,third, to reduce the friction of the rake by giving it an oscillatingmovement by the rolling of a single longitudinal shaft. I attain theseobjects by t'ne mechanism illustrated in the accompanying drawings, inwhich- Figure l is a top plan view; Fig. 2 is a cross-section takenthrough the grainer and one of the heating-tubes, showing the returnfluein said tube, and Fig. 3 is a front end view with the doors open showingthe tirebox.

Similarletters refer to similar parts throughout the several views.

A represents the grainer, made of any suitable material, semispheriealin form, within which the brine is placed.

B is the furnace-front, to which are hinged the furnace-doors b.

O are longitudinal tubes of large diameter, secured to the furnace-frontand end walls of the grainer and extending the entire length ofthe same.These tubes may be provided with a center longitudinal wall, J, with thesmoke-pipe at the front so as to form a returniiue for the utilizing ofthe entire heat, or the tube alone may be used with the smoke-exit pipeat the rear end and remote from the tirechamber.

c are tire-grates secured centrally within each tube at the front endsthereof; D are the smoke-exit pipes, one to each tube.

E is a longitudinal shaft, carrying the arms F, upon the outer ends ofwhich are secured the circular bands F. Upon the peripheral edge ofthese circular bands are hinged the scrapers G.

g are brackets made fast to bands F' upon the periphery of the same, andagainst which the scrapers rest when moving in the direction necessaryfor the removal of the salt. It will be observed that the scraper-sbeing hinged to the circular bands they will follow in theline of therevolution of the same one way, and

will only elevate the salt through the intcrvention of the bracketsagainst which the Scrapers rest. For depositing upon both sidesduplicate scrapers and brackets are used.

II are bearing-boxes secured to either end of the graincr and withinwhich the shaft E tu rns.

I is a crank-arm attached to the shaft F at a point outside of thegrainer, and to which the operating-power is applied.

In practice the grainer or brine-heating receptacle is of someconsiderable length. The heating-tubes are of large enough diameter toallow ofthe requisite fuel space in Aone end of the tubo, the said tubeextending the required length of the grainer and being submerged in thebrine. These tubes are ofthe required number, (from two to six,) and areaccessible for the removal of incrustations which form upon the outsideof all metal heating-pipes that pass through hot brine. Vhen a greatlength of grainer is used, the heat may become fully utilized withoutthe employment of the return-flue, as shown at J, Fig. 2; but I preferthe substitution of the return-liue-on thc score of economy.

I am aware that prior to my invention saltgrainers have been used havingheating-pipes and the same made to run longitudinally through thegrainer; but as far as I am aware I am the irst to organize aheating-tube that has a tire-box in one end, or that has a centraldividing-wall for forming a return-Hue, and thus combining in a singletube a fire-box, a heating-tube, and a return-flue.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a salt-evaporator, the longitudinal heating-tube submerged withinthe brine, the central longitudinal dividing-wall within the IOO tubefor forming one single direct and one singlereturn flue, there-boxloeated in the front end of one sub-division of the tube, thesmokeexit pipe connecting With the other subdivision, all combined withthe grainer, and operating substantially as described.

2. The seinieircular grainer carrying the oscillating rake-frame, andthe hinged scrape s, rigid when at work and flexible when idle,

in combination with aperiodic operating mechanism, and arranged for theautomatic lateral depositing of the salt, substantially as herein Ydescribed and set forth'.

described. Y

' NATHAN S. BEARDSLEE.

Witnesses:

vM. R, QUAoKnNBUsH,

E. M. JENNINGS.'

